Customer reports are
ebay's second and last line of defence against policy violations in regard to the Cuban embargo. Most of
ebay's customer reporting is from people who have previously been reported and had their own listings nuked, and merely wish to see you treated the same as they were.
"If I can't sell Cuban coins, than neither can you!" would be the attitude. It is, thus, a self-perpetuating wave of dobbers and tattlers.
ebay's first line of defence against the sale of Cuban coins is a simple word filter - not entirely unlike the swear-word filter used on places like right here on CCF.
ebay's filter automatically detects and blocks any listing that uses the word "Cuba" in the title or description.
It is, of course, not hard to fool a word filter - simply use a synonym. "Kuba" is popular, as is "South Florida" and "Caribbean". But the people that put the word filter there are likely to get really upset at sellers using word trickery to bypass their nice shiny filter. Using "Latino" would readily be construed by
ebay as attempting to use synonyms to bypass the auto-blocker, on the assumption that you had already attempted to list the coin with the correct "Cuba" descriptor and been told by
ebay's robot that this was not allowed.
Adding one non-Cuban coin to the lot would likely also be seen by
ebay as some kind of attempt to mask your evil pro-Cuban-goods attitude. But I frankly don't know how dilute the Cuban coins need to become in a bulk world coin lot before
ebay decides "they're not Cuban coins any more". If you have fifty or a hundred world coins, from all over the world, and there happens to be just one Cuban coin visible in one of your photos, would that be enough to justify pulling the listing, if someone reported you?
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis